This is neuro week! An emaciated homeless man with alcohol on his breath presents to your emergency department confused and unable to walk. On examination, you find profound disorientation and lack of attention. Neuro exam shows horizontal nystagmus, bilateral cranial nerve VI palsy, and sluggish pupils. Unfortunately, he does not survive and an autopsy is done, showing this:
Challenge: What is the importance of the following molecule?
1. What does the pathology specimen show? Where is the lesion?
2. What is the diagnosis? What is the clinical triad here?
First image shown under fair use, second image in the public domain.